<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
    <script src="js/jquery-1.7.min.js"></script>
    <script src="js/common.js"></script>
    <script src="js/md5.js"></script>
    <script src="js/login.js"></script>
</head>
<body>
    <form>
        用户：<input type="text" id="username" />
        密码：<input type="password" id="password" />
        <button></button>
    </form>

</body>
</html>